linux-kernel - Re: [alsa-devel] [PATCH] ASoC: skl: always select SND_SOC_HDAC

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Message-ID: <20181106101058.GQ10650@smile.fi.intel.com>
Date:   Tue, 6 Nov 2018 12:10:58 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Takashi Iwai <tiwai@...e.de>,
        ALSA Development Mailing List <alsa-devel@...a-project.org>,
        guneshwor.o.singh@...el.com, naveen.m@...el.com,
        pankaj.laxminarayan.bharadiya@...el.com,
        rakesh.a.ughreja@...el.com, sanyog.r.kale@...el.com,
        sriramx.periyasamy@...el.com, Mark Brown <broonie@...nel.org>,
        Vinod Koul <vkoul@...nel.org>, liam.r.girdwood@...ux.intel.com,
        yang.jie@...ux.intel.com,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [alsa-devel] [PATCH] ASoC: skl: always select SND_SOC_HDAC_HDA

On Mon, Nov 05, 2018 at 10:19:02PM +0100, Arnd Bergmann wrote:
> On 11/5/18, Andy Shevchenko <andy.shevchenko@...il.com> wrote:
> > On Mon, Nov 5, 2018 at 7:19 PM Pierre-Louis Bossart
> > <pierre-louis.bossart@...ux.intel.com> wrote:

> >> >> config SND_SOC_HDAC_HDA_FORCE
> >> >>           tristate
> >
> >> >>           depends on SND_SOC_ALL_CODECS != n
> >
> > Forgot to mention that AFAIU above line is no-op in symbols which are
> > hidden.
> >
> 
> It's not. In this case, it will prevent SND_SOC_HDAC_HDA_FORCE
> from being turned on by the 'default ...' line. In other cases, it can
> generate a warning if you have a hidden symbol that is selected
> by some other symbol while the dependency is missing.

Something new to learn.
Thanks, Arnd, for describing this case.

-- 
With Best Regards,
Andy Shevchenko